| Value | Category | Cases | |
|---|---|---|---|
| -2 | Skipped | 4361 |
79.6%
|
| -1 | True missing | 18 |
0.3%
|
| 0 | No | 669 |
12.2%
|
| 1 | Yes | 432 |
7.9%
|
| 99 | Refused to answer | 1 |
0%
|